9smimtxa.nx.link
No description published for this endpoint.
OtherLiveeip155:8453Exactvia facilitator:thirdweb
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
—
Verified settled volume
0 settlements proven x402 by their on-chain EIP-3009 marker.
$0.00
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
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Upstream on-chain volume
Reported by the source catalog.
Paid to
0x199b4cb1B72d8B3eBba077931E10AfB0a25Fa4C5The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.100016USDC≈ $ USD
on Base · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x199b…Fa4C5
- USD Coin contract
- 0x8335…02913
- Payment window
- 24 hours
- Buys
- SourceProof API https://sourceproof-production.up.railway.app - POST Verify a factual claim against supplied evidence
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0x199b4cb1B72d8B3eBba077931E10AfB0a25Fa4C5",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://9smimtxa.nx.link/v1/verify-claim",
"description": "SourceProof API https://sourceproof-production.up.railway.app - POST Verify a factual claim against supplied evidence",
"outputSchema": {
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "VerifyClaimResponse",
"required": [
"request_id",
"claim",
"verdict",
"confidence",
"rationale",
"citations",
"unresolved_questions",
"evidence",
"model",
"usage"
],
"properties": {
"claim": {
"type": "string",
"title": "Claim"
},
"model": {
"type": "string",
"title": "Model"
},
"usage": {
"type": "object",
"title": "TokenUsage",
"properties": {
"input_tokens": {
"type": "integer",
"title": "Input Tokens",
"default": 0
},
"total_tokens": {
"type": "integer",
"title": "Total Tokens",
"default": 0
},
"output_tokens": {
"type": "integer",
"title": "Output Tokens",
"default": 0
}
},
"additionalProperties": false
},
"verdict": {
"enum": [
"supported",
"contradicted",
"mixed",
"unresolved"
],
"type": "string",
"title": "Verdict"
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"title": "SnapshotRecord",
"required": [
"evidence_id",
"requested_url",
"final_url",
"fetched_at",
"status_code",
"content_type",
"byte_size",
"sha256",
"text_length",
"text_truncated"
],
"properties": {
"text": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Text"
},
"title": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Title"
},
"sha256": {
"type": "string",
"title": "Sha256"
},
"byte_size": {
"type": "integer",
"title": "Byte Size"
},
"final_url": {
"type": "string",
"title": "Final Url"
},
"fetched_at": {
"type": "string",
"title": "Fetched At",
"format": "date-time"
},
"evidence_id": {
"type": "string",
"title": "Evidence Id"
},
"status_code": {
"type": "integer",
"title": "Status Code"
},
"text_length": {
"type": "integer",
"title": "Text Length"
},
"content_type": {
"type": "string",
"title": "Content Type"
},
"requested_url": {
"type": "string",
"title": "Requested Url"
},
"redirect_chain": {
"type": "array",
"items": {
"type": "string"
},
"title": "Redirect Chain"
},
"text_truncated": {
"type": "boolean",
"title": "Text Truncated"
}
},
"additionalProperties": false
},
"title": "Evidence"
},
"citations": {
"type": "array",
"items": {
"type": "object",
"title": "Citation",
"required": [
"evidence_id",
"locator",
"quote",
"stance",
"explanation"
],
"properties": {
"quote": {
"type": "string",
"title": "Quote"
},
"stance": {
"enum": [
"supports",
"contradicts"
],
"type": "string",
"title": "CitationStance"
},
"locator": {
"type": "string",
"title": "Locator"
},
"source_url": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Source Url"
},
"evidence_id": {
"type": "string",
"title": "Evidence Id"
},
"explanation": {
"type": "string",
"title": "Explanation"
},
"source_label": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Source Label"
}
},
"additionalProperties": false
},
"title": "Citations"
},
"rationale": {
"type": "string",
"title": "Rationale"
},
"confidence": {
"type": "number",
"title": "Confidence"
},
"request_id": {
"type": "string",
"title": "Request Id"
},
"unresolved_questions": {
"type": "array",
"items": {
"type": "string"
},
"title": "Unresolved Questions"
}
},
"additionalProperties": false
}
}
},
"description": "Successful Response"
},
"422": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "HTTPValidationError",
"properties": {
"detail": {
"type": "array",
"items": {
"type": "object",
"title": "ValidationError",
"required": [
"loc",
"msg",
"type"
],
"properties": {
"ctx": {
"type": "object",
"title": "Context"
},
"loc": {
"type": "array",
"items": {
"anyOf": [
{
"type": "string"
},
{
"type": "integer"
}
]
},
"title": "Location"
},
"msg": {
"type": "string",
"title": "Message"
},
"type": {
"type": "string",
"title": "Error Type"
},
"input": {
"title": "Input"
}
}
},
"title": "Detail"
}
}
}
}
},
"description": "Validation Error"
}
},
"parameters": [
{
"in": "header",
"name": "Idempotency-Key",
"schema": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Idempotency-Key"
},
"required": false
}
],
"requestBody": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "VerifyClaimRequest",
"required": [
"claim",
"sources"
],
"properties": {
"claim": {
"type": "string",
"title": "Claim",
"maxLength": 2000,
"minLength": 3,
"description": "The precise factual claim to evaluate."
},
"sources": {
"type": "array",
"items": {
"type": "object",
"title": "SourceInput",
"properties": {
"url": {
"anyOf": [
{
"type": "string",
"format": "uri",
"minLength": 1
},
{
"type": "null"
}
],
"title": "Url",
"description": "Public source URL to fetch and preserve."
},
"text": {
"anyOf": [
{
"type": "string",
"minLength": 1
},
{
"type": "null"
}
],
"title": "Text",
"description": "Inline source text when no public URL is available."
},
"label": {
"anyOf": [
{
"type": "string",
"maxLength": 200
},
{
"type": "null"
}
],
"title": "Label",
"description": "Optional human-readable source label."
}
},
"additionalProperties": false
},
"title": "Sources",
"maxItems": 10,
"minItems": 1,
"description": "One or more public URLs or inline source texts."
}
},
"additionalProperties": false
}
}
},
"required": true
}
},
"maxAmountRequired": "0.100016",
"maxTimeoutSeconds": 86400
}
]Provenance
- Seen in the source catalog
- 2026-07-28 18:24Z
- Last indexed by Roundhouse
- 2026-09-24 13:45Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 00:15Z
- x402 version
- 1
- Max timeout
- 86400s
- Liveness probe
- HTTP 404
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service 9smimtxa.nx.link and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=9smimtxa.nx.link' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://9smimtxa.nx.link/v1/verify-claim, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.